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2003 Course Polymer Processing Operations - I

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Total No. of Questions : 12] P1370 [Total No. of Pages : 3 [3764]- 352 B.E. (Polymer) POLYMER PROCESSING OPERATIONS - I (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions for each section. 2) Answers to the two sections should be written in separate book. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, mollier charts, electronic pocket calculator and steam table is allowed. 5) Assume suitable data, if necessary. SECTION - I Q1) a) Discuss the concept of barrier screw with suitable sketch. Discuss also merits and demerits of same. [8] b) Explain with neat sketch wire coating process. [8] c) Explain why capstan is used in wire coating. [2] OR Q2) a) Describe the different methods used for pipe size. [6] b) Explain the process of lamination and the effect of process parameter on quality of products. [6] c) Explain different types of winders with merits and demerits used in film production. [6] Q3) a) Draw neat sketch of accumulator type die head assembly for extrusion blow molding? Explain function of each part. [8] b) Explain the following terms with references to extrusion blow molding. i) ii) iii) iv) Parison sag. Pleating. Shark Skin effect. Calibrated neck. [8] OR P.T.O.

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